Fear Itself (Star Trek: Discovery)

Details:

Lieutenant Saru is a Kelpien, a being who very intimately understands the nature of fear. Challenged on all sides, he is determined to succeed as a Starfleet officer aboard the U.S.S. Shenzhou. But when Saru breaks protocol in order to prove himself to his crewmates, what begins as a vital rescue mission to save a vessel soon escalates out of control.